作者: David J. Mladenoff , Robert G. Haight , Theodore A. Sickley , Adrian P. Wydeven
DOI: 10.2307/1313003
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摘要: gered Species Act of 1973 one year after passage. Since that time, natural recolonization and population recovery wolves in the western Great Lakes region United States (the Lake States-Minnesota, Wisconsin, Michigan) has been a notable success (Refsnider 1994). At time listing, wolf was extirpated throughout outside Alaska except for remnant populations northeast Minnesota on Isle Royale, Superior (Mech 1970). protection under Act, in-